311940820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{1861}}^1$

素因数の和:1933

約数の個数: 72

約数和(自身を含む): 720258840

約数和(自身を除く): 408318020

約数列:

[1, 2, 4, 5, 10, 17, 20, 29, 34, 58, 68, 85, 116, 145, 170, 289, 290, 340, 493, 578, 580, 986, 1156, 1445, 1861, 1972, 2465, 2890, 3722, 4930, 5780, 7444, 8381, 9305, 9860, 16762, 18610, 31637, 33524, 37220, 41905, 53969, 63274, 83810, 107938, 126548, 158185, 167620, 215876, 269845, 316370, 537829, 539690, 632740, 917473, 1075658, 1079380, 1834946, 2151316, 2689145, 3669892, 4587365, 5378290, 9174730, 10756580, 15597041, 18349460, 31194082, 62388164, 77985205, 155970410, 311940820]

約数ペア:

[(1, 311940820), (2, 155970410), (4, 77985205), (5, 62388164), (10, 31194082), (17, 18349460), (20, 15597041), (29, 10756580), (34, 9174730), (58, 5378290), (68, 4587365), (85, 3669892), (116, 2689145), (145, 2151316), (170, 1834946), (289, 1079380), (290, 1075658), (340, 917473), (493, 632740), (578, 539690), (580, 537829), (986, 316370), (1156, 269845), (1445, 215876), (1861, 167620), (1972, 158185), (2465, 126548), (2890, 107938), (3722, 83810), (4930, 63274), (5780, 53969), (7444, 41905), (8381, 37220), (9305, 33524), (9860, 31637), (16762, 18610)]